/Engine/Source/Runtime/Engine/Public/PluginBlueprintLibrary.h
Get the filesystem path to a plugin's base directory.
true if the named plugin was found and the plugin base directory filesystem path was stored in OutBaseDir, or false otherwise
static bool GetPluginBaseDir ( const [FString](API\Runtime\Core\Containers\FString) & PluginName, [FString](API\Runtime\Core\Containers\FString) & OutBaseDir )